Burkert 257873 (00257873) Mass flow controller
- Alternative numbers
Heavy-duty m ass flow controller
- Burkert Type 8626
- Article: 257873 (00257873)
- 8626-45,0M-CH4-E-A -GM84-VAFF-E-04,0
Burkert Type 8626 Mass Flow Controllers are compact devices that control the mass flow of gases. They regulation the set flow velocity nonetheless of hurdle including pressure loss or provisional flow resistance. Flow controllers consist of a flow meter, an electronic module, as well as a proportional valve. Inline sensors function in the constant temperature anemometers mode. In that event, the electrical thermal resistance and the measuring resistance are set to a constant temperature differentiation. Both resistances are directly in the gas stream; three more resistances are outside him. All resistances are combined in an electric bridge. The first resistance is gauge the temperature of the fluid. The second, low resistance, is heated continuously to sustain a clearly defined surplus temperature relative to the fluid temperature. Due to the fact that the resistances are inclined straight away in the channel, the apparatus have excellent dynamics: the time for reaction when changing a given or actual value is hundredths of a millisecond. Additionally, the sensor is almost not polluted.